204559420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{8111}}^1$

素因数の和:8230

約数の個数: 48

約数和(自身を含む): 467445888

約数和(自身を除く): 262886468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 5044, 6305, 8111, 12610, 16222, 25220, 32444, 40555, 81110, 105443, 162220, 210886, 421772, 527215, 786767, 1054430, 1573534, 2108860, 3147068, 3933835, 7867670, 10227971, 15735340, 20455942, 40911884, 51139855, 102279710, 204559420]

約数ペア:

[(1, 204559420), (2, 102279710), (4, 51139855), (5, 40911884), (10, 20455942), (13, 15735340), (20, 10227971), (26, 7867670), (52, 3933835), (65, 3147068), (97, 2108860), (130, 1573534), (194, 1054430), (260, 786767), (388, 527215), (485, 421772), (970, 210886), (1261, 162220), (1940, 105443), (2522, 81110), (5044, 40555), (6305, 32444), (8111, 25220), (12610, 16222)]